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Innovative Intermetallic Compounds by Laser Alloying
Abstract Mathematical modeling of heat and mass transfer in pulsed laser alloying is used to simulate the dynamics of interphase boundaries during complete thermal cycle, convective mass transfer, concentration fields of admixture and so on. Several original solutions are proposed for laser alloying of systems with large differences in physicochemical properties such as: Al-Sn(In), Fe-Sn(In, Fb), Al-Fe. Among them: (a) combined continuous wave laser and pulse-periodic laser action; (b) using of shielding covers to avoid the removal of alloying elements from the zone of treatment. The obtained results indicate the formation of nonequilibrium phases and/or submicron sized precipitations. The developed method of laser surface alloying with Sn is applied for the problem of wear resistance improvement for bearing steels working at severe operating conditions.
Innovative Intermetallic Compounds by Laser Alloying
Abstract Mathematical modeling of heat and mass transfer in pulsed laser alloying is used to simulate the dynamics of interphase boundaries during complete thermal cycle, convective mass transfer, concentration fields of admixture and so on. Several original solutions are proposed for laser alloying of systems with large differences in physicochemical properties such as: Al-Sn(In), Fe-Sn(In, Fb), Al-Fe. Among them: (a) combined continuous wave laser and pulse-periodic laser action; (b) using of shielding covers to avoid the removal of alloying elements from the zone of treatment. The obtained results indicate the formation of nonequilibrium phases and/or submicron sized precipitations. The developed method of laser surface alloying with Sn is applied for the problem of wear resistance improvement for bearing steels working at severe operating conditions.
Innovative Intermetallic Compounds by Laser Alloying
Smurov, I. (author) / Ignatiev, M. (author)
1996-01-01
60 pages
Article/Chapter (Book)
Electronic Resource
English
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